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题名: Antifungal activity of oligochitosan against Phytophthora capsici and other plant pathogenic fungi in vitro
作者: Xu, Junguang;  Zhao, Xiaoming;  Han, Xiuwen;  Du, Yuguang
通讯作者: 杜昱光
关键词: oligochitosan ;  antifungal ;  Phytophthora capsici ;  ultrastructure
刊名: PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
发表日期: 2007-03-01
DOI: 10.1016/j.pestbp.2006.07.013
卷: 87, 期:3, 页:220-228
收录类别: SCI
文章类型: Article
部门归属: 18,5
项目归属: 1805,502
产权排名: 1;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ;  Entomology ;  Physiology
研究领域[WOS]: Biochemistry & Molecular Biology ;  Entomology ;  Physiology
英文摘要: Antifungal activity of oligochitosan against nine phytopathogens was investigated in vitro. Oligochitosan was more effective than chitosan in inhibiting mycelial growth of Phytophthora capsici and its inhibition on different stages in life cycle of P. capsici was observed. Rupture of released zoospores induced by oligochitosan was reduced by addition of 100 mM glucose. The effects of oligochitosan on mycelial growth and zoospore release, but not zoospore rupture, were reduced largely when pH value was above 7. The ultrastructural study showed that oligochitosan caused distortion and disruption of most vacuoles, thickening of plasmalemma, and appearance of unique tubular materials. Plasmalemmasomes in hyphal tip cells were not found in the presence of oligochitosan. These results suggest polycationic nature of oligochitosan contributes only partly to its antifungal activity and multiple modes of action of oligochitosan exist including the disruption of endomembrane system. (c) 2006 Elsevier Inc. All rights reserved.
关键词[WOS]: BLAST PYRICULARIA-GRISEA ;  MOLD BOTRYTIS-CINEREA ;  CHITOSAN DERIVATIVES ;  CELL-WALL ;  POSTHARVEST PATHOGENS ;  ALTERNARIA-ALTERNATA ;  ANTIBACTERIAL ACTION ;  CUCUMBER PLANTS ;  MEMBRANE ;  FUSARIUM
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000244657300005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98575
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Xu, Junguang,Zhao, Xiaoming,Han, Xiuwen,et al. Antifungal activity of oligochitosan against Phytophthora capsici and other plant pathogenic fungi in vitro[J]. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,2007,87(3):220-228.
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